Rigidity of randomly intercalated layered solids

Michael Thorpe, W. Jin, S. D. Mahanti

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

We set up a harmonic spring model that describes both the layer rigidity and the size and stiffness of the intercalant species. In certain limiting cases, when (1) the layers are either perfectly floppy or perfectly rigid and (2) the stiffness of the two intercalant species are the same, the model can be solved exactly. We also give an effective-medium solution that reproduces all the known exact results, and agrees well with numerical simulations in other cases. These simulations are performed for both one- and two-dimensional systems. If the two intercalant species have the same spring constant, Vegards law is recovered. We compute the probability distribution of the various interlayer distances and apply the results to two-dimensional alloys of Li and vacancies in graphite, and to K and Rb in graphite.

Original languageEnglish (US)
Pages (from-to)10294-10308
Number of pages15
JournalPhysical Review B
Volume40
Issue number15
DOIs
StatePublished - 1989
Externally publishedYes

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Graphite
rigidity
Rigidity
stiffness
graphite
Stiffness
Probability distributions
Vacancies
interlayers
simulation
harmonics
Computer simulation

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Thorpe, M., Jin, W., & Mahanti, S. D. (1989). Rigidity of randomly intercalated layered solids. Physical Review B, 40(15), 10294-10308. https://doi.org/10.1103/PhysRevB.40.10294

Rigidity of randomly intercalated layered solids. / Thorpe, Michael; Jin, W.; Mahanti, S. D.

In: Physical Review B, Vol. 40, No. 15, 1989, p. 10294-10308.

Research output: Contribution to journalArticle

Thorpe, M, Jin, W & Mahanti, SD 1989, 'Rigidity of randomly intercalated layered solids', Physical Review B, vol. 40, no. 15, pp. 10294-10308. https://doi.org/10.1103/PhysRevB.40.10294
Thorpe, Michael ; Jin, W. ; Mahanti, S. D. / Rigidity of randomly intercalated layered solids. In: Physical Review B. 1989 ; Vol. 40, No. 15. pp. 10294-10308.
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